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April 11, 2007
Literature Review - Sweep Point & Shoot
Sweep and Point & Shoot: Phonecam-Based Interactions for Large Public Displays (Ballagas, Rohs et al. 2005)This paper introduces 2 novel interaction techniques for large screen displays using cell phones: point & shoot and sweep. In the point and shoot condition users could use the viewfinder on their camera to interact with specific display elements on the large screen display. On the sweep condition users could use their phones as mice, through software that was able to determine motion using the phone’s video camera. The researchers evaluated these novel interaction technique by having users complete a series of tasks using the two new interaction techniques, and a standard in phone joystick as seen on the Nokia 6600. The authors found no significant difference between the point & shoot method and joystick interaction methods; however, they the sweep method was significantly slower then either of these two methods. In essence, this paper introduces and evaluates two novel methods of interacting with large screen displays using cell phones; however, most of there findings are of little interest because of the limitations of existing mobile phone technology, for example the authors note a few critical problems that limited the usability of their novel techniques, it will be interesting to see follow up studies once faster mobile phone processors are available.
Ballagas, R., M. Rohs, et al. (2005). Sweep and point and shoot: phonecam-based interactions for large public displays. CHI '05 extended abstracts on Human factors in computing systems. Portland, OR, USA, ACM Press.
Posted by bcx at April 11, 2007 02:07 AM